Smart Client Deployment with ClickOnce: Deploying Windows Forms Applications with ClickOnce

Chapter 4. On-Demand Updates

IN THE LAST CHAPTER you learned how to use the automatic updating capability of ClickOnce to keep your applications up to date on the client machine without needing to add any code to your application. Those capabilities will probably address the deployment requirements for the majority of ClickOnce deployed applications. But when you need to do something different than the options available for automatic updates, you don’t have to discard ClickOnce as an option.

The on-demand API of ClickOnce lets you programmatically check for updates and download those updates at any time when your application is running through ClickOnce. You can use this if you want to let users choose when to check for an update, or you can ...